Haifeng Zhao

Identifying safe intersection design through unsupervised feature extraction from satellite imagery

Jasper S Wijnands, Haifeng Zhao, Kerry A Nice, Jason Thompson, Katherine Scully, Jingqiu Guo, Mark Stevenson

Journal article  |  2020  |  Computer-Aided Civil and Infrastructure Engineering

The World Health Organization has listed the design of safer intersections as a key intervention to reduce global road trauma. Thi..

Streetscape augmentation using generative adversarial networks: Insights related to health and wellbeing

Jasper S Wijnands, Kerry A Nice, Jason Thompson, Haifeng Zhao, Mark Stevenson

Journal article  |  2020  |  Sustainable Cities and Society

Deep learning using neural networks has provided advances in image style transfer, merging the content of one image (e.g., a photo..

Reducing Cyclist Crashes by Assessing the Road Environment: An Application of Google Imagery and Machine Learning

Haifeng Zhao, Jasper Wijnands, Kerry Nice, Jason Thompson, Gideon Aschwanden, Jingqiu Guo, Mark Stevenson

Journal article  |  2019  |  Journal of Transport & Health

Background: Cycling is an active and sustainable transportation mode, and is associated with health, environmental and societal be..

Learning to walk: Modeling transportation mode choice distribution through neural networks

Gideon DPA Aschwanden, Jasper S Wijnands, Jason Thompson, Kerry A Nice, Haifeng Zhao, Mark Stevenson

Journal article  |  2019  |  Environment and Planning B: Urban Analytics and City Science

Middle-aged Drivers' subjective categorization for combined alignments on mountainous freeways and their speed choices

Fan Wang, Yuren Chen, Jingqiu Guo, Chen Yu, Mark Stevenson, Haifeng Zhao

Journal article  |  2019  |  Accident Analysis & Prevention

Opportunities to reduce road traffic injury: new insights from the study of urban areas.

Mark Stevenson, Jason Thompson, Jasper S Wijnands, Kerry Nice, Gideon Aschwanden, Haifeng Zhao

Journal article  |  2019  |  International Journal of Injury Control and Safety Promotion

Over the past four decades considerable efforts have been taken to mitigate the growing burden of road injury. With increasing urb..

Unsupervised Deep Learning to Explore Streetscape Factors Associated with Urban Cyclist Safety

Haifeng Zhao, Jasper S Wijnands, Kerry Nice, Jason Thompson, Gideon DPA Aschwanden, Mark Stevenson, Jingqiu Guo

Book Chapter  |  2019  |  Smart Innovation, Systems and Technologies

Cycling is associated with health, environmental and societal benefits. Urban infrastructure design catering to cyclists’ safety c..

Car-Following Modeling Incorporating Driving Memory Based on Autoencoder and Long Short-Term Memory Neural Networks

Pengcheng Fan, Jingqiu Guo, Haifeng Zhao, Jasper S Wijnands, Yibing Wang

Journal article  |  2019  |  Sustainability

Although a lot of work has been conducted on car-following modeling, model calibration and validation are still a great challenge,..

The Nature of Human Settlement: Building an understanding of high performance city design (a.k.a. Block Typologies)

Kerry Nice, Gideon DPA Aschwanden, Jasper Wijnands, Jason Thompson, Haifeng Zhao, Mark Stevenson

Conference Proceedings  |  2019  |  UrbanSys2019 satellite session of 2019 Conference on Complex Systems

Sky pixel detection in outdoor imagery using an adaptive algorithm and machine learning

KA Nice, JS Wijnands, A Middel, J Wang, Y Qiu, N Zhao, J Thompson, GDPA Aschwanden, H Zhao, M Stevenson

Journal article  |  2019  |  Urban Climate

Computer vision techniques enable automated detection of sky pixels in outdoor imagery. In urban climate, sky detection is an impo..